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4/8/2010

This function changes a region into a rectangular region with the specified coordinates.

Syntax 

BOOL SetRectRgn( 
  HRGN 
hrgn, 
  int 
nLeftRect, 
  int 
nTopRect, 
  int 
nRightRect, 
  int 
nBottomRect
);

Parameters

hrgn

[in] Handle to the region.

nLeftRect

[in] Specifies the x-coordinate of the upper left corner of the rectangular region.

nTopRect

[in] Specifies the y-coordinate of the upper left corner of the rectangular region.

nRightRect

[in] Specifies the x-coordinate of the lower right corner of the rectangular region.

nBottomRect

[in] Specifies the y-coordinate of the lower right corner of the rectangular region.

Return Value

Nonzero indicates success.

Zero indicates failure.

To get extended error information, call GetLastError.

Remarks

The region does not include the lower and right boundaries of the rectangle.

Requirements

Header windows.h
Library coredll.lib
Windows Embedded CE Windows CE 2.0 and later
Windows Mobile Windows Mobile Version 5.0 and later

See Also